Network Connections Stalled or Lost with Emulex Corporation OneConnect 10Gb NIC ( be2net ) and Oracle VM 3.2 (Doc ID 1537926.1)

Last updated on MARCH 08, 2017

Applies to:

Oracle VM - Version 3.2.1 and later
Linux x86-64

Symptoms

 When using Emulex Corporation OneConnect 10Gb NIC and Oracle VM 3.2.x you may notice network disconnects or you are being unable to establish a connection, the following scenarios have been observed,

When encountering this problem you will notice an increase in the rx_drops_no_frags counter, eg:

this counter is only a side effect, not the cause of this problem. Using VLANs increases the chance of hitting this bug. Firmware versions do not seem to play a role for this issue, firmware version 2.102.517.7, 3.102.517.701, 4.1.402.8 and 4.1.450.7-2 were tested during the analysis.

 

Changes

 Oracle VM 3.2.x uses the uek2 2.6.39-300 kernel.

Cause

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